baber/WOPTO huggingface dataset:
Patent GB-811846-A (GB)
Title: Improvements in or relating to the production of chloramphenicol and similar compounds
Filed: 1955-07-18
Abstract: A process for the manufacture of 1-nitro-phenyl - 2 - acylamino - 1 : 3 - diols and their o1 or o3-mono-acyl derivatives comprises reacting nitric esters of the general formula <FORM:0811846/IV (b)/1> wherein R1 and R2 signify a hydrogen atom, a nitro group or an acyl residue with the proviso that either R1 or R2 must be -NO2, and R3 signifies an acyl residue, with a ferrous salt in the presence of water.  In examples (1): l-threo-1 - (p - nitrophenyl) 2 - dichloracetylamino - propane-1 : 3-diol (prepared by the nitration of l-threo - 1 - phenyl - 2 - dichloracetylamino-propane-1 : 3-diol with 86 per cent nitric acid at - 20 DEG  C.) is treated with an aqueous solution of ferrous sulphate and sulphamic acid to form chloramphenicol; (2) l-threo-1-(p-nitrophenyl) 2 - dichloracetylaminopropane - 1 : 3 - diol-O1 - palmitoyl - O3 - mononitric ester (prepared by the reaction of l - threo - 1 - (p - nitrophenyl) - 2 - dichloroacetylamino - propane-1 : 3 - diol - O3 - mononitric ester with palmitic acid chloride in the presence of pyridine) is treated with a solution of ferrous chloride and sodium formate in methanol to give l-threo-1-(p - nitrophenyl) - 2 - dichloracetylaminopropane - 1 : 3 - diol - O1 - palmitate; (3) l-threo-1 - (p - nitrophenyl) - 2 - dichloracetylamino-propane - 1 : 3 - diol - O3 - palmitoyl - O1-mononitric ester (produced by the nitration of l - threo - 1 - phenyl - 2 - dichloracetylamino-propane - 1 : 3 - diol - O3 - palmitic acid ester) is treated with a solution of ferrous chloride and sodium formate in methanol to give l-threo-1-(p - nitrophenyl) - 2 - dichloracetylamino - propane - 1 : 3 - diol - O3 - palmitic acid ester; (4) in a process similar to that of Example (3) a solution in methanol of ferrous chloride and potassium sulphamate is used to treat the ester; (5) D(-)-threo-1-(p-nitrophenyl)-2-dichloracetylaminopropane - 1 : 3 - diol - dinitric ester is treated with ferrous ammonium sulphate in methanol to give D(-)-threo-1-(p-nitrophenyl)-2-dichloracetylamino-propane-1 : 3-diol.
Patent GB-243796-A (GB)
Title: An improved fire alarm apparatus
IPC: G08B17/06
Filed: 1924-09-03
Abstract: 243,796. Freda, G. Sept. 3, 1924. Alarms operated by expansion of solids and gases.-An electric fire alarm, comprising a considerable length of wire 1 having tension adjusting means 3, 4 at one end and a spring-controlled contact 13 at the other, is provided with means whereby no signal is given on rise of temperature due to normal conditions. The spring-controlled contact 13 is adapted to coact with a contact 14 mounted on one arm of a lever 17, the other arm of which is connected by a link 21 to a piston 22 in an air cylinder 23. The. expansion of air in the cylinder 23 compensates for expansion of the wire 1 on slow rise of temperature. The volume of air in the cylinder is regulated by a piston 27 moved by a screw 25. A screw knob 28 is removed from the end of the hollow piston rod 26 when it is required to allow air to enter the cylinder. The contact may take place under oil to prevent sparking. The wire 1 may be conducted through a perforated tube.
Patent GB-818993-A (GB)
Title: Improvements in electric dry cells
IPC: H01M50/147
Filed: 1956-07-05
Abstract: 818,993. Dry cells. UNION CARBIDE CORPORATION. July 5, 1956 [Sept. 1, 1955]; No. 20814/56. Class 53.  In a leak-proof dry cell having a rigid top closure 28, 30, 32, a displaceable inner seal 22 defines a lower free space 18 and an upper free space 24 and a venting washer 26 is mounted in the upper free space to provide a gas path from the cell regardless of the position of the inner seal 22. With the inner seal in the position shown'in Fig. 1, gas. produced passes through the carbon electrode, or between it and the inner seal, to the venting washer 26 and out through the insulating washer 30 between the metal parts 28, 32 of the top closure. If the pressure of the gas and any exuded liquid forces the inner seal upwards, as shown in Fig. 6, the venting washer prevents the washer 30, and therefore the exit passage of the gas, from being obstructed. The seal 22 consists of a layer of wax or a mixture asphalt and petroleum jelly on a paper collar 20 having a coating 21 of plastics. The venting washer, which is preferably of paper, may extend across the cell to the jacket 34 and the top closure may be replaced by a one-piece metal cover. A gaspermeable tube, e.g. of cardboard, may be provided around the carbon electrode in the lower free space 18.
Patent GB-930981-A (GB)
Title: Method of processing cocoa mixes
IPC: A23G1/32
Filed: 1961-06-08
Abstract: 930,981. Grinding cocoa. G. MOSIMANN. June 8, 1961 [June 9, 1960], No. 20823/61. Class 59. [Also in Group VI] In a method, which may be continuous, for the production of chocolate products, the particle size of the cocoa component is reduced in the absence of oxygen. Ingredients are fed from containers 1 and 2 into a mixer 3 from which the mixture is pneumatically conveyed through a drier 5 including a cyclone unit 5b before entering a cooler 6. The cooled mix is ground in a device 7, from which the air is extracted by a pump P, and which is fed with nitrogen from a supply S. The initial temperature of the mix during grinding is maintained, by cooling the device 7. The ground product is then fed, by means of a cyclone 8, and via a dosing device 9, to a kneading device 10 together with cocoa butter fed from a container 14 via a dosing device 12. The kneaded product is forced into an homogenizer 13, and then passes to a container 14 from which it is fed to an ultrasonic device 15 and the final product is passed to a container 16. The ultrasonic treatment may take place before grinding.
Patent GB-1498360-A (GB)
Title: Packing elements for biological trickle filters
IPC: B01J19/30
Filed: 1976-05-20
Abstract: 1498360 Packing elements for trickle filters NORTON CO 20 May 1976 [21 May 1975] 20875/76 Heading CIC [Also in Division B1] Plastic packing elements for use in gas liquid contact apparatus, in particular biological trickle filters, comprise an outer wall of tubular shape extending around the central axis of the element, an inner tubular wall around the central axis and an intermediate tubular wall situated between and connected to the outer and inner walls, at least two of the walls being inclined at an angle to the central axis. The elements also preferably have radial ribs and perforations or apertures in the walls.
Patent GB-1121921-A (GB)
Title: Coil annealing apparatus
IPC: C21D9/54
Filed: 1966-05-11
Abstract: 1,121,921. Charging heat treatment furnaces. LEE WILSON ENG. CO. 11 May, 1966 [15 June, 1965], No. 20883/66. Heading F4B. A charging oar serving rows of ooil heating furnaces arranged in pairs comprises a main frame structure 60 running on tracks 1, 2 between the furnaces, an intermediate turntable carriage 61 running on transverse rails 76, 77 on said main frame, and an upper coil transfer carriage 62 running on rails 96<SP>1</SP>-100<SP>1</SP> on said turntable carriage. Main frame 60 includes channel shaped end members 63, 64 in which are yokes 67, 68 on trunnions 69, 70 themselves carrying wheel housings 71 72 each with a pair of wheels 74, 75. Intermediate carriage 61 is mounted on sets of wheels 84, 85 on tracks 76, 77 and is driven by motor 89 through rack and pinion gearing 90, 91. Coiloarrying turntable on carriage 61 has a peripheral ring gear 93 engaged by a pinion 94 on a drive motor 95 and carries transverse beams 96- 100 with interconnecting beams 101, 102, said beams 96-100 carrying the tracks 96<SP>1</SP>- 100<SP>1</SP>. Transfer carriage 62 includes a wheeled frame 105 having inverted channel finger members 107-111 enclosing the wheels 112 and cam rollers 113 rotatably mounted above said wheels. The cam rollers 113 support coil lift bars 114-118 having serrated undersides providing cam faces 119. When the transfer carriage is extended, wheels 112 engage tracks in slots formed in coil storage bases and turntables in line with the furnaces, and in slots formed in the furnace hearths. Lift bars 114- 118 are connected at their inner ends by a plate 120 forming a unitary fork lift structure operated by a motor 121 through transverse shaft 122 and screw jacks 123 with drive members 124 whose end rollers 125 engage slots 126 formed in the inner end of lift bars 114-118. Movement of carriage 62 is effected by motor 130 through shaft 131, gear boxes 132, 133 and rack and pinion gearing 134, 136 and 135, 137 respectively. The combination of ten pairs of furnaces, coil storage bases and turntables enables completely annealed coils to be produced at regular intervals with a high degree of prescheduled or automated operation by using suitable control mechanisms. The furnaces may be of the type disclosed in Specification 1,065,428.
Patent GB-1143005-A (GB)
Title: Buildings and similar structures
IPC: E04B1/32
Filed: 1966-05-12
Abstract: 1,143,005. Greenhouses; sound-proofed rooms. E. LOWE. 14 April, 1967 [12 May, 1966], No. 21006/66. Heading E1A. A building, such as a greenhouse in the form of an icosahedron, is constructed from glazed, triangular frames or fibreglass panels which are bolted together through the intermediary of inwardly or outwardly directed lips lying at an angle of 30‹ to the plane of the panel. A like structure may be lined or covered with sound insulating material to provide a sound-free personal enclosure. (For Figure see next column)
Patent GB-1151360-A (GB)
Title: Recording System
Inventor: BECKER CARL HEINRICH
IPC: G01D15/14
Filed: 1966-05-12
Abstract: 1,151,360. Optical recording. PRECISION INSTRUMENT CO. 12 May, 1966, No. 21088/66. Heading G5R. A beam of optical energy, such as coherent light from a laser A, is modulated in accordance with input information and focused on to one face of a film carrier E where it causes vaporization of an opaque coating, such as a developed photographic emulsion, to allow the coating at the point of vaporization to be at least -partially transparent to optical energy. Playback may take place simultaneously with recording, by detecting the amount of optical energy transmitted through the film carrier E.
Patent GB-1505524-A (GB)
Title: Josephson junction devices
IPC: G11C11/14
Filed: 1975-05-19
Abstract: 1505524 Superconductive devices INTERNATIONAL BUSINESS MACHINES CORP 19 May 1975 [7 June 1974] 21129/75 Heading H3X Binary data is stored in a Josephson junction having the least concentration of tunnelling current at its centre, by the coincident application of a gate current Ig of below a given threshold with a control current Ic of above another threshold, the data being stored in the superconductive state of the junction in the form of one or another of two different vortex modes of a single flux quantum. Read out is effected by a similar current coincidence but with the gate current Ig raised to above its threshold so that the junction switches from its superconducting to the voltage state. The tunnelling current of the junction may be concentrated at the boundaries by increasing the thickness of the insulating layer 4 at the centre 9, Fig. 1. This figure shows the transverse path 10 of a vortex current through the superconductive layers 2, 3, this current having the capability of being established in a positive or a negative mode or a zero mode. The tunnelling current may alternatively be concentrated at the boundaries by the use of compound superconductive layers with boundaries of a different material of lower work function, the insulating layer being of uniform thickness. Another method involves shaping the end of one or each superconductive layer as shown in Figs. 2A, 3A, 4A to provide a reduced effective length of junction at the centre and a corresponding current distribution profile, Figs. 2B, 2C, 2D (not shown). Fig. 7 shows the characteristics for a high current density low damping junction for positive, negative and zero vortices in terms of coincidently applied control and gating currents Ic, Ig. Thus to write "0" the current Ig must not exceed a threshold 15 and Ic must be such as to extend the working point beyond the broken line portion of the + VORTEX curve. The "0" VORTEX superconducting state is then established. The + VORTEX condition represents "1", and is established by applying a write coincident condition in which Ig must not exceed a threshold 17 and Ic must be such as to extend the working point beyond the broken line portion of the "0" VORTEX curve. Readout is effected by raising Ig to exceed the relevant threshold, the junction then switching to its voltage state. In a modified junction providing similar operating properties the central part of the junction is entirely omitted. A coordinate store using junctions of the form shown in Fig. 3A is described, each word line 21 comprising a series of junctions 20 through which a gate current Ig may be passed, and each bit line 22 consisting of a control line for a current Ic common to a plurality of word line junctions. Binary information may alternatively be stored in the form of positive and negative vortices.
Patent GB-419105-A (GB)
Title: Improvements in or relating to cycle and like electric lamps
IPC: B62J6/00
Filed: 1933-07-27
Abstract: 419,105. Electric battery lamps. NIER, E. R., NIER, E. E., NIER, E., and EHMER, J. M., (trading as NIER & EHMER), Beierfeld, Saxony, Germany. July 27, 1933, No. 21144. Convention date, Aug. 27, 1932. [Class 39 (ii).] An electric lamp for cycles &c. has two filaments giving light beams of different power with a two-armed switch mounted in the lamp casing or on the handlebars for connecting either filament to a galvanic battery or to a dynamo. One end of each of the filaments 7, 8 is earthed and the other ends connected to lamp cap contacts 9, 10 which are connected respectively to pairs of contacts d, d<1> and c, c<1>, a switch arm 29 connecting either filament alternatively to a dynamo M or battery 38 through pairs of terminals a, a<1> and b, b'. The battery may be held in a recess at the rear of the casing upon a support 37 forming an insulated terminal for one of the battery contacts, the other contact being earthed on the casing. The switch terminals are mounted on an insulated plate 26 in the casing, the switch being operated by a handle 28. Specifications 227,537 and 274,002, [both in Class 39 (ii)], are referred to. Reference has been directed by the Comptroller to Specification 349,691.
Patent GB-516203-A (GB)
Title: Facing brick
IPC: E04B2/10
Filed: 1938-07-16
Abstract: 516,203. Facing - bricks. CERALUX HOLDINGS SOC. ANON. July 16. 1938, Nos. 21145 and 21146. Convention dates, July 16, 1937 and June 18, 1938. [Class 87 (i)] A facing brick has a recess 1 with a sloping face 9 along its top front edge and a second recess 2 in which the front part of the supported brick 3 rests to resist penetration of moisture, the underside of the brick having a channel 4 for mortar and a recess 5 for the passage of anchoring members 8 which are inserted behind a rib 6 or in a groove or recesses in the upper side of the brick. In the modification shown in Fig. 4 the lower front edge 1 of the brick is rebated and the upper front edge is sloped at 9, whilst in a corner brick shown in Fig. 6 a longitudinal face and an adjacent lateral face 9 have their upper and lower edges shaped similarly to those in Fig. 4. The Specification as open to inspection under Sect. 91 comprises also a construction, Fig. 6 (Cancelled), wherein the upper front edge of the brick is left straight and the lower front edge 1 is rebated. This subject-matter does not appear in the Specification as accepted.
Patent GB-276007-A (GB)
Title: Process of obtaining light hydrocarbons from animal or vegetable oils by the simultaneous action of heat, hydrogen under pressure and a de-hydrating catalyst
IPC: C10G47/00
Filed: 1926-05-26
Abstract: 276,007. Florentin, J. M. F. D., Kling, A. J., and Matignon, C. Dec. 17, 1925, [Convention date]. Hydrogenation, destructive.-Hydrocarbons of low boiling point are obtained from liquid oxygenated organic compounds, e.g. animal and vegetable oils by heating the latter in the liquid phase under a minimum pressure of 45 kg. per sq. cm. and temperature of 350-480‹ C. in the presence of hydrogen- and dehydrating catalysts, e.g. thoria, alumina, clay or silica. The prior treatment of shale oil, which sometimes contain oxygenated organic compounds, is referred to. Specifications 263,082 is referred to.
Patent GB-602036-A (GB)
Title: Apparatus for relief cinematography
IPC: G03B35/16
Filed: 1945-08-20
Abstract: 602,036. Stereoscopic kinematography. BRIZON, J. M. A. Aug. 20, 1945, No. 21280. Convention date, July 3, 1944. Drawings to Specification. [Class 97 (i)] In apparatus wherein left and right eye images are projected in succession on to the screen and the two eyes are obscured alternately, a light is shone in front of the eye which is required not to see the screen. As shown in Fig. 2 of the abridgment of Specification 602,035, windows F1, F2 are provided, for the two eyes, each having parallel spaced glass sheets between which a gas is contained and through which discharges may be passed from electrodes 7, 8 and 9, 10. The discharges are controlled by the film itself as described in Specification 602,035. Two superposed gas-filled spaces may be provided before each eye and contain different gases. The glass plates may be tinted. In a modification, filament lamps are used screened from direct vision by the eyes.
Patent GB-322184-A (GB)
Title: Process for the production of vat dyestuffs of the anthraquinone series and intermediate products therefor
IPC: C09B5/30
Filed: 1928-07-23
Abstract: 322,184. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 23, 1928. Anthraquinone dithiazoles; arylmercaptoiminoanthraquinones.-The imidechlorides of 2.6-diaroyldiaminoanthraquinones are converted into C-diaryl-2.1-(S) : 6.5-(S)-anthraquinonedithiazoles by treatment with sulphur or agents yielding sulphur. If this treatment is carried out under mild conditions, for example at low temperatures, 2.6 - bis-arylmercaptomethylaminoanthraquinones are first obtained and may be converted to the above dithiazoles by treating with acid or alkaline dehydrogenating agents such as sulphuric acid, chlorsulphonic acid, to which substances may be added an oxidizing agent, or potassium hydroxide solution containing potassium ferricyanide. In examples, 2.6-bis-phenylmercaptomethyliminoanthraquinone is heated (1) in naphthalene with sulphur to give C-diphenyl-2.1- (S) : 6.5-(S)-anthraquinonedithiazole (2) with alcoholic potash saturated with sulphuretted hydrogen to yield 2.6-bis-phenylmercaptomethyliminoanthraquinone; the latter compound is converted to the dithiazole obtained (1) by heating with sulphuric acid or other oxidizing agent. The imidechlorides may be prepared by the action of phosphorus pentachloride on the 2.6-diaryldiaminoanthraquinones. Specification 21615/12 is referred to.
Patent GB-1310268-A (GB)
Title: Hydraulic telescopic jibs or derricks
IPC: F15B15/16
Filed: 1970-05-04
Abstract: 1310268 Hydraulic rams C F WEYHAUSEN 4 May 1970 12 May 1969] 21307/70 Heading F1D Each of two similarly dimensioned hydraulic ram cylinders 3, 5 fixed to a first member 11 to be extended and having common end plates contain pistons 1, 6 the rods 1a, 6a of which:are of different diameter, extend in opposite directions and are fixed respectively at 14a, 14 to a stationary member 10 and to a second member 12 to be extended, and the head ends of the cylinders 3, 5 are hydraulically connected by a line 9 including a pretensioned check valve 7 whereas the rod ends of the cylinders are hydraulically connected by a line 4 having a branchline connected through non-pretensioned check valve 8 to the head end of cylinder 5 whereby to effect retraction. Pressure fluid is fed at 2 to the rod end of cylinder 3 thus the piston 6 hence member 12 is first retracted followed by retraction of connected cylinders 3, 5 and hence member 11. To effect extension of members 11, 12 pressure fluid is fed at 15 and through a bore in rod 1a extending through piston 1 to move connected cylinders 3, 5 thence member 11 to the right. When piston 1 abuts cylinder end wall 13 the pressure rise at the head end of cylinder 3 opens valve 7 resulting in piston 6, rod 6a thence member 12 being extended. The members 11, 12 form telescopic members of a jib arm 10.
Patent GB-1007491-A (GB)
Title: Gear lubricant filtration
Inventor: BAVISTER HAROLD SIDNEY
IPC: F16N39/06
Filed: 1962-06-04
Abstract: 1,007,491. Lubricating; toothed gearing. VAUXHALL MOTORS Ltd. May 23, 1963 [June 4, 1962]; No. 21423/62. Headings F2A and F2Q. [Also in Division B1] A lubricant filtration system for a vehicle rear axle gear comprises felted or matted pads A. B. C. of fibrous material, preferably wool, which are positioned in the gear casing so as to be in the oil stream created by rotation of the crown wheel 3. The pad A is positioned around the drive shaft of the pinion 2, the pad B partly encircles and is spaced from the crown wheel 3 and the pad C is arranged in the casing sump. The three pads A, B and C are fixed by spring clips 12, 13 and 14 respectively. The oil stream is indicated by the arrows and during operation of the gear mechanism, the oil is thrown on to and made to flow over the surface of the pads thereby entraining the wornoff metal particles. The pads are normally only fitted for the running in period and when they become clogged their pads can be removed, and there is little need to insert a new one.
Patent GB-696492-A (GB)
Title: Systems for equalizing the driving movements of a pair of hydraulic motors
Inventor: ASHTON BENJAMIN N
IPC: B66F7/20
Filed: 1950-08-30
Abstract: 696,492. Fluid-actuated valves; hydraulic machines. ELECTROL, Inc. Aug. 30, 1950 [Sept. 1, 1949], No, 21444/50. Classes 69(ii) and 135 A system for maintaining the speeds of hydraulic jacks 11, 12, Fig. 1, constant, e.g. to hold a platform 10 level, comprises ball valves 34, 35, Fig. 2, in the supply lines to the jacks, having loading springs 36, 37 respectively, which are differentially adjustable by push rods 40, 41 contacted by a beam 42 movable by a differential mechanism driven by the jacks. This mechanism comprises shafts 51, 52 carrying gears 62, 61 which respectively drive pinions 59, 58 meshing through a slot 60 in a support 43 which carries the beam 42. The shafts are rotated in opposite directions when the jacks move, by cables 47, 48 wound on drums 49, 50 mounted on shafts 51, 52 respectively. Springs 66, 67 cause the shafts to rotate when the jacks retract. If the speed of one jack exceeds that of the other, the respective shaft will rotate faster than the other and cause the support 43 to turn and through beam 42 increase the load on the valve of the faster jack, thus restricting its supply and slowing it. The jacks are supplied by a pump 16 and extension or retraction is controlled by a valve 33.
Patent GB-705557-A (GB)
Title: Improvements relating to the construction of motor vehicles
IPC: B62D23/00
Filed: 1952-08-26
Abstract: 705,557. Road vehicle bodies. DAIMLERBENZ AKT: GES. Aug. 26, 1952 [Sept. 26, 1951], No. 21450/52. Class 108(1) The end cells of a motor vehicle comprise U-shaped members having sectorshaped side walls 3 to the curved edges of which are attached cylindrically curved transverse members having flanged extensions 6, 7 which carry the external bodywork 8.